Ported from upstream jbd changes to jbd2
sparse pointer use of zero as null
Get rid of sparse related warnings from places that use integer as NULL
pointer.
Signed-off-by: Mingming Cao <[email protected]>
---
fs/jbd2/transaction.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
Index: linux-2.6.24-rc7/fs/jbd2/transaction.c
===================================================================
--- linux-2.6.24-rc7.orig/fs/jbd2/transaction.c 2008-01-16 17:49:48.000000000 -0800
+++ linux-2.6.24-rc7/fs/jbd2/transaction.c 2008-01-16 18:06:33.000000000 -0800
@@ -1182,7 +1182,7 @@ int jbd2_journal_dirty_metadata(handle_t
}
/* That test should have eliminated the following case: */
- J_ASSERT_JH(jh, jh->b_frozen_data == 0);
+ J_ASSERT_JH(jh, jh->b_frozen_data == NULL);
JBUFFER_TRACE(jh, "file as BJ_Metadata");
spin_lock(&journal->j_list_lock);
@@ -1532,7 +1532,7 @@ void __jbd2_journal_temp_unlink_buffer(s
J_ASSERT_JH(jh, jh->b_jlist < BJ_Types);
if (jh->b_jlist != BJ_None)
- J_ASSERT_JH(jh, transaction != 0);
+ J_ASSERT_JH(jh, transaction != NULL);
switch (jh->b_jlist) {
case BJ_None:
@@ -1601,11 +1601,11 @@ __journal_try_to_free_buffer(journal_t *
if (buffer_locked(bh) || buffer_dirty(bh))
goto out;
- if (jh->b_next_transaction != 0)
+ if (jh->b_next_transaction != NULL)
goto out;
spin_lock(&journal->j_list_lock);
- if (jh->b_transaction != 0 && jh->b_cp_transaction == 0) {
+ if (jh->b_transaction != NULL && jh->b_cp_transaction == NULL) {
if (jh->b_jlist == BJ_SyncData || jh->b_jlist == BJ_Locked) {
/* A written-back ordered data buffer */
JBUFFER_TRACE(jh, "release data");
@@ -1613,7 +1613,7 @@ __journal_try_to_free_buffer(journal_t *
jbd2_journal_remove_journal_head(bh);
__brelse(bh);
}
- } else if (jh->b_cp_transaction != 0 && jh->b_transaction == 0) {
+ } else if (jh->b_cp_transaction != NULL && jh->b_transaction == NULL) {
/* written-back checkpointed metadata buffer */
if (jh->b_jlist == BJ_None) {
JBUFFER_TRACE(jh, "remove from checkpoint list");
@@ -1973,7 +1973,7 @@ void __jbd2_journal_file_buffer(struct j
J_ASSERT_JH(jh, jh->b_jlist < BJ_Types);
J_ASSERT_JH(jh, jh->b_transaction == transaction ||
- jh->b_transaction == 0);
+ jh->b_transaction == NULL);
if (jh->b_transaction && jh->b_jlist == jlist)
return;